In Reynolds v. United States (1879), the Supreme Court ruled unanimously that a federal law prohibiting polygamy did not violate the free exercise clause of the First Amendment.| The Free Speech Center
Employment Division, Department of Human Resources of Oregon v. Smith (1990) greatly changed First Amendment religious free exercise law, abandoning the compelling interest test.| The Free Speech Center
City of Boerne v. Flores (1997) said Congress does not have unlimited power to expand First Amendment rights and overturned the Religious Freedom Restoration Act of 1993.| The Free Speech Center
Sherbert v. Verner (1963) said that denying unemployment benefits to an applicant who refused to work on Saturday, her Sabbath, violated First Amendment rights.| The Free Speech Center